Box stitching machine



Aug- 3 1932. E. L.. WALKER ET AL 1,874,571

BOX STITCHING MACHINE a I Z/I N VEN TORX y A TTORNEYS Aug- 30 1932,- E. WALKER ET AL 1,874,671

Boxl STITCHING MACHINE Filed July 27, 1929 2 sheets-sheet 2 IN VEN TORJ. Mm

3 ATTORNEY-5.

Patented Aug. 30, 1932 UNITED STATES PATENT CFFICE EMEEY L. WALKER, oEwAUwA'rosA, AND ARTHUR W. WERNER, or MILWAUKEE, WIscoNsIN, AssIeNoEs To KIECKEEEEE CONTAINER COMPANY, or MILWAUKEE, WIs- CONSIN, A CORPORATION OF MAINE BOX STITCHING MACHINE Application filed July 27,

l5. and its free ends have been folded over to meet one another, it is necessary to secure said free ends together. This is usually done by a stitching machine which inserts wire staples at suitable intervals. Heretofore, no means .m has been provided for holding the box blanks in a squared condition in the stitching machine and as a result the containers are frequently imperfect in shape when assembled.

It is, therefore, one ofthe objects ofthis invention to obviate the above mentioned imvals perfections by providing an improved stitchmg machine having means for holding the box blanks in perfectly squared condition while the staples are being inserted.

With the' above and other objects in view, the invention consists of the improved stitching machine and all its parts and combinations as set forth in the claims, and all equivalents thereof.

In the accompanying drawings, which illustrate one complete embodiment of the preferred form of the invention, and in which the same reference numerals designate the same parts in all of the views:

Fig. 1 is a plan view of the improved stitching machine;

Fig. 2 is a side view thereof; l

Fig. 3 is an enlarged sectional detail view taken on line 3 3 of Fig. 4; and

Fig. 4 is a sectional detail view taken on line 4-4 of Fig. 3.

Referring to the drawings, the numeral 6 designates a base portion upon which are mounted arms 7 for supporting a table 9. The latter is also supported by a floor stand 8. The arms 7, being spaced apart coincide with the mounting of bearing supports 10 which extend upwardly and carry a shaft 11. A head bar 10 extends longitudinally above the table. A plurality of cam members 12, which are carried by the shaft 11f yare arranged to cause reciprocation of a plurality of stitching arms 13. The said cam members and stitching arms areof standard construction and will therefore 11,019 b@ described 1929. Serial No. 381,591.

in det-ail. The stitching arms are fed with wire 14 from spools 15, the latter being rotatably mounted on a rod-16.r The rod 16 is j ournaled in bearings 17 on a pair of laterally extending arms 18.

The shaft 11 is provided on its outer end with a rigidly mounted gearr19 which meshes with a gear 20 on a short shaft 21. The said shaft 21 also carries a bevel gear 22 which meshes with a bevel gear 23 on a shaft 24. The shaft 24 carries a sprocket wheel 25 and a gear 26. The sprocket 25 is connected by an endless chain 27 with a sprocket 28 on a drive shaft 29 of an electric motor 30.

The gear 26 on the shaft 24 meshes with a gear 31 on a shaft 32. A sprocket wheel 33, also on the shaft 32, is connected by an endless chain 34 with a sprocket 35 on a shaft 36 below the stitcher table. Other sprocket wheels 37 on the shaft 36 are connected by endless chains 38 with sprocket wheels 39 on a shaft 40, and with sprockets 41 on a. shaft 42.V Other sprocket wheels 43 on the shaft 42 are conrfected by endless chains 44 withV sprocket wheels 45 on a shaft 46 journaled at the end of the frame.

A novel feature `of the stitching machine resides in the means which vis employed for holding the folded box blank in squared posi tion while the stitching is being done, so that the completed box will bev true in shape. This feature is illustrated in detail in Figs. 3 and 4; Referring to said figures, the shaft 11 is journaled through the upper ends of members 47.and 48 which are formed with slots 49 and 50. Slidably mounted in the slot 50 is a bar51 carrying a plate 52 on its lower end. The upper end of said bar has a pin 53 extending therefrom which engages a together as at 57. The lower section carries f a plate 58 similar to the plate 52 on the bar `5 1, and the upper section carries a pin 59. The said pin is received in a groove 60 of a cam member 61, the latter being also rotatable with the shaft 11. The slot 49 is formed at its f lower portion with an inclined surface 62 rion n be stitched together, are guidedinto'over--z which forces the lower portion of the bar 56 outwardly. The two sections of the bar 56 are connected by a coil spring 63 which normally holds said sections in vertical alinement 'with one another, when the lower end of the vbar 56 is Vabove the ,cam portionlf-GQ, said spring being slightly compressed when the lower portion of the bar is forced outwardly Aasi in Fig. 8.

VVlhenia box Ablank is placedin the'imachine it is fed forward by the endless chains 44 and 38 and its folded over ends, which are to lapping position by bars 64 and by a guide 65. When the blank entersbeneathI thestitching arms 13, the cams, bars andl plates 5 2l and 5,8 are the raised positions showfnibythe dottedlinesin Fig. 4 permitting theblank to pass'A below the stitching; arms. Whenthe blank is "directly below said arms, the cam members and 61 rareturned! bytimed rotations .f-,the Vshaft 1l/to' the position 'shown by fulllines iniFig.' 4. 'Through lthe` pins x53 and 59- the bars'jl and '56 are forced` downwardly andltheplates `52Y and 58 vrgrip the blank f therebetween. Through the inclined surface 62,l lthe plate '58 is fforced inwardly bringing the sides of the 'folded ,over ends vof the blank into alinement with the corresponding sides of the, portion of the blank on which said ends are folded, thereby squaring the box blank, -and'holdingit Vin squarejdposition. until theY overlapping edges arestitched together. The plates` 52 and '58 are then raisedupwar'dly again .andthe blank vis 'dischanged'from the end eff thestitcher in completedknoekdown form. 'Although the .invention lis more particularly adapte'dffor use 'in connection with box stitching machines and lhas been so described, itis to be understood y,that this `invention coverstheuseof a-sqnaring device'in any other combination. in which it may be applicable, and it istobe further understoodthat all changes and modifications are contemplated as may 'fairly come withinthe scope of theclaims. l

".Whatwe claimis: 1. lIn a machine having mechanism 'for performing *al boxanaking operation upon rsheet:mal'ferial,arotatable shaft, a pair of disks ihavinfr cam -f-'ro'oves therein riidlA D C ID mounted on said; shaft in spaced apart relation, ,a pair of gu-idemembers, engaging members slidable' 1n said guide members', said engaging members havin g 4pins pro] ecting therefromand engaging-said cam grooves so that rotationof thodisks will cause reciproca-l movement. of theV engaging. members y to embracelthe sheet material when theL latter is in operative ,relation to said box making mechanism, and means for causing` oneof 'said Vengaging membersl-to'be moved toward the other tasquare said sheet material.

n 2.'In la machine'having mechanism "for other zmember .temporarily arresting the -lsheet-"material,apair of engaging members performing a box making operation upon sheet material, conveying means for said sheet material, and a pair of members engageable with opposite sides of said sheet material when it is in operative position with relation to said yfbox making mechanism for holding said sheet material in squared condit-ion, one of said members being movable taward the :other -of`-said members and said movement of -the sheet material.

l3. In a machine having mechanism for performingia box making operation upon sheet material, conveying means for said movableina ,direction transverse to themovement f the sheet material toward the. latter vto embracethesame therebetweemand means 'for causing one of-said engaging members to vbemoved'toward the! other .to square said 85 sheet, material, ksaid other' engaging member vtemporarily,arresting the movement ofuthe sheet material while it is being Ioperated upon ,byjthe' box ymaking mechanism. l

4.,? In a machine having mechanism for securi vtheifolded over ends ofa box blank toget er, conveyingy means for said box blank, and-,means engageable with Isaid box. blank Whenit is inoperative, position with relation to saidsecuring mechanism for temporarily arresting4 the movement of theblank-and -for bringin the sidesof the folded over ends of the blan `into alinementwith the corresponding sides of Athe portion of the blank on which saidendsl are/folded so that said blank will be, in squared condition whenL it is being operatedupon.

5. Ina machine having mechanism for securing the 4folded over ends of a sheet of material together, conveying means for said :05 Vsheet yof material, and means engageable with saidfsheet when `it is in operativeposition with relation tosaid securing mechanism for temporarily arrestingthe movement of the 4#Sheet and for bringing the sides of the folded @10 over ends of the sheet into alinement with the corresponding sides of the portion of the sheet yon which-said ends are folded sothat-said sheet willbe in ,squared condtionwhen it is bein operated upon.

'6. n a box making machine, conveying means for sheets of material having folded over ends, mechanism for securing said ends together, a 'driven shaft for operating said mechanism,`arndrmovable members engagel0 able with said sheets when they are in oper- Yativelposition with relationto said securing mechanism'for holdingsaid sheets in squared rcondition while the ends are beingv secured, and a driving connection between said movd able members and the shaft for operating the securing' mechanism.

'7. In a box making machine, conveyin meansffor sheets of material having folde .over ends, mechanism including movable L80 stitcher arms for securing said ends together,` a driven shaft for operating said stitcher arms, movable members engageable with said sheets when they are in operative position with relation to said stitching mechanism for holding said sheets in squared condition While the ends are being secured, and a driving connection between said movable members and the shaft for operating the stitcher arms.

In testimony whereof, We aiix our signatures.

EMERY L. WALKER. ARTHUR W. WERNER. 

